I have also used the balls for many years now, on and off. I have read about the health benefits associated but your story is really encouraging. As for other healing aspects, you have covered what I woudl have thought about with the chi kung (qi gong) and the thai chi practise. There is an exercise called "standing on pole" which comes from the internal arts. Amy seems to have a fair degree of knowledge when it comes to internal practise and health.
Have you looked at homeopathy, reiki, TCM and other 'alternative therapies' to supplemnet what the doc's are doing?